photography | fəˈtäɡrəfē |
the art or practice of taking and processing photographs.
Modern photography is based on the property of silver compounds decomposing to metallic silver when exposed to light. The light-sensitive salts are held in an emulsion (in color film, layers of emulsion) usually mounted on transparent roll film.
velocity | vəˈläsədē |
noun (plural velocities)
the speed of something in a given direction: the velocities of the emitted particles.
• (in general use) speed: the tank shot backward at an incredible velocity.
• (also velocity of circulation) Economics the rate at which money changes hands within an economy.
philosophy | fəˈläsəfē |
noun (plural philosophies)
the study of the fundamental nature of knowledge, reality, and existence, especially when considered as an academic discipline. See also natural philosophy.
• a particular system of philosophical thought: Schopenhauer’s philosophy.
• the study of the theoretical basis of a particular branch of knowledge or experience: the philosophy of science.
• a theory or attitude held by a person or organization that acts as a guiding principle for behavior: don't expect anything and you won't be disappointed, that's my philosophy.